Your example is a good one because it highlights the situation of a crap school using a good recruiter.The reason that that school had to resort to a recruiter to fill its vacancies for FT's was that it was a crap school.
As a rule,crap schools depend on recruiters.But there are occasions when good schools hire through recruiters because dishonest louwai break their promises with little or no warning in order to work elsewhere abroad for more money or change their minds about venturing abrad in the first place.
There are crap schools,crap recruiters,and dishonest louwai.Of course, each group has its own good ones too!